chemistry test 2

Question 1

kinetic molecular theory

Answer 1

all substances are formed by particles that are in constant motion

Question 2

kinetic energy

Answer 2

KE=1/2 mv2

Question 3

enegry is measured in

Answer 3

joules

Question 4

gasses

Answer 4

particles are far apart, and move rapidly

Question 5

kmt make asumtpoiotns about gas,
1

Answer 5

the volume of the molecules is tiny compared to the space they occupy

Question 6

kmt make asumtpoiotns about gas,
2.

Answer 6

the particles are so far apart that polar interactions between the molscules are essentialy zero

Question 7

kmt make asumtpoiotns about gas,
3.

Answer 7

the particles bounce around and collide with each other and with the conatiner, but never loose energy in those collisions

Question 8

real gases have slight deiviations
1

Answer 8

low tempature

Question 9

real gases have slight deiviations
2.

Answer 9

high pressure/low volume

Question 10

real gases have slight deiviations
3.

Answer 10

the more polar a molecule, the less ideal

Question 11

propteries of gasses

Answer 11

they can flow/move
will expand to fill a container
can chnage shape
gasses can be compressed
diffusion
effusion

Question 12

diffusion

Answer 12

abilty to spread in a room

Question 13

effusion

Answer 13

ablity to pass through a small hole

Question 14

liquids

Answer 14

slow moving particles, close together

Question 15

proptiers of liquids

Answer 15

they flow,
they can change shape,
cannot change volume

Question 16

coehsion

Answer 16

attraction between moleculs of the same type

Question 17

adhesion

Answer 17

attraction between moleculs of different types

Question 18

meniscous

Answer 18

adehsion between water and glass is greater than the coheision bwteen water and water

Question 19

mercury

Answer 19

coeshion is greater then mercury to glass adhesion

Question 20

capillary action

Answer 20

combination of adheison and cohesion that lets water go up a tree

Question 21

viscosity

Answer 21

ho thick a liquid is, restiance to flow honey v water

Question 22

solids

Answer 22

have a fixed shape, fixed volume, pretty dense,
compact particles vibrating in place

Question 23

crystalline solid

Answer 23

particles are in a regular pattern, these have a set melting point, like ice(0)

Question 24

amorphous solids

Answer 24

have no pattern, they dont have a set melting point,
like glass

Question 25

solid to liquid

Answer 25

melting

Question 26

liquid to solid

Answer 26

frezzing (fusion)

Question 27

liquid- gas

Answer 27

vaporization

Question 28

gas-liquid

Answer 28

condensation

Question 29

gas-solid

Answer 29

deposition

Question 30

solid-gas

Answer 30

sublimation

Question 31

Q=mcT

Answer 31

m= mass, c= specific heat, T= change in tempature

Question 32

evaportion and condensation

Answer 32

evaportion= condensation

Question 33

boiling point

Answer 33

the temp where the vapor of a substance= the atmosphere pressure

Question 34

volatile liquids

Answer 34

easy to evaporate

Question 35

where does water boil at a lower temp

Answer 35

at the top of the mouantian.

Question 36

water

Answer 36

bent, polar, intermolcular attration called a hydrogen bond